Sheet metal structure



April 23, 1940. M, J, c, JQH NNS I 2.197.761

SHEET IETAL TRUCTURE Filed Aug. 26, 1938 2 Sheets-Sheet 1 I INVENTOR BTMGMLAMM /MW- L @135 April 23, 1940. M. J. c. JOHANNS SHEET IETAL STRUCTURE Filed Aug; 126, ,1938

2 Sheets-Sheet 2 ,1: 11111 lwj/ 40 according to the invention.

- 55 outside legs of the flange-shaped grooves have entrant flange 4, is bent according to the inven- Patefited P 23, 1 946 253?.

SHEET METAL STRUCTURE Martinus Jacobus Charles Johanns, Rotterdam,

- Netherlands Application August 26, 1938, Serial No. 226,898 In the Netherlands February 8, 1936 7 Claims. (Cl. 189-64) My invention relates to sheet metal sections or been extended to form smaller webs 6 and restructures particularly to structures for frames entrant flanges 4 running parallel to the associof windows and doors. ated double flanges I and terminating at points One object of my invention is sheet metal substantially spaced from the level of the bends 5 structures or sections comprising a straight main of the double flanges. In Fig. 2 the extension of 6 web or ledge connected substantially at right the one leg is longer than the extension of the angles at one or both edges to two double flanges other as the figure clearly shows. The terminal which consist of parallel legs spaced apart. The points of these flanges 4 are provided with inouter legs of one or both flanges are continued to turned lips 5.

form second straight webs or ledges which are In Figs. 3, 4 and 5 only one of the outside legs 10 smaller than the main web and terminate in rehas been extended and bent to form a re-entrant entrant flanges which are extended to a point flange 4 and a lip"5. As seen in the figures, the substantially spaced from the level of the bend outer leg of each double flange is extended below of the associated double flange. the leg, so that the second web 6 or the groove Other and further objects of the invention will formed by the re-entrant flange 4 is parallel to 15 be hereinafter set forth and the novel features the main web 3 but is spaced therefrom, Alterthereof defined by the appended claims. I natively the second web 6 can also, as seen in the Several embodiments of my inve tion a Figures 2, 5 and -'7, lie level with the main web 3. shown in the accompanying drawings. 'Ihese As will appear hereinafter, advantages accrue also illustrate various features which can be conby the .provision of the lips 5 which are obtained 2 veniently combined with the principal features by bending the metal inwardly and rectangularly of the invention. Y I to the flanges 4.

Figs. 1-8 show various structures according to By the bends according to the invention a flexthe invention in cross-section. ible but strong construction is obtained which Figs. 9-12 show several applications of struchas a considerable resistance against bending or 2 tures according to Figs. 1-8 in cross-section. deflection.

Figs. 13-15 show various elements to be used In Fig. 8 the lip 5 is slightly dovetailed. In in combination with structures according to the the same manner, as shown in Figs. '3, 4 and 5, invention. Y only one leg is extended, the other outer leg being 80 Fig. 16 shows another application of a strucprovided in an arbitrary manner with a reenture according to the invention in cross-section. v forcement I or the like. l

Figs. 17 and 18 show further elements to be In Figs. 9-12 and Figs. 16-25 some applications used in combination with structures according to of constructions according to the invention are the invention. shown. In Fig. 9 constructions according to, Fig. 19 shows another application of structures Figs. 6 and 7 are applied to swing arms 44 the 35 according to the invention in cross-section. bottom sill of which is shown. In the recesses Fig. 20 shows a further structure according to formed by the webs 6 and re-entrant flanges 4 the invention in cross-section. strips 10 of india rubber or other sound and Fig. 21 showsanother application of structures shock absorbing material are inserted.

- In the application of the invention illustrated Figs. 22-24 show in cross-section and in front in Fig. 9 a resilient glass holder I6 is inserted view further elements to .be used in combination and, aflixed in the, groove 2 which is formed by with structures according to the invention. the two legs of the double flange l. I

Fig. 25 shows a further structure according to If no special strips of india rubber or the like the invention in cross-section and Fig. 26 shows are provided (Fig. 10) nevertheless an elastic 5 another application of a structure according to closing is obtained and shocks are prevented by .Y the invention in cross section. H v the flexible flanges 4 and lips 5. r The structures according to the invention In Fig. 10 which also presents a bottom sill, an shown in Figs.'1-8 consist of metal and comprise anchor 82 is shown, provided with a bit or proa main web 3 having on both sides of it double jection [3 which engages the head I, to secure flanges I standing vertically to the web 3, which the construction in place. are obtained by the groove-forming bands 2 so In Figure 7 an embodiment of .the invention is that the legs of the respective flanges. are parshownin which the outside leg of one of the douallel and spaced apart. In Figures 1 and 2 both ble flanges, instead of being formed into the retion. to form a small element 9 running parallel with the web 8 and an element 8, which is slightly inclined relativeto the web 3. The element 8 ends preferably in an upstanding lip or jogele 5 which is approximately vertical to the plane of the web 3.

In Fig. 9 the upper section is constructed as indicated in Fig. 7, the element 8 serving as a drip edge. In the lower structure the small element 9 is omitted and the part 8 serves as a condensation gutter, the rim of which is formed by the lip 5. In Fig. 10, the lower section is constructed as shown in Fig. 4. The small tubes or channels ll shown in Figs. 9 and 10 serve as outlets for condensation water. I

In Fig. 13 a glass support I6 is shown which can be held in its position by one of the double flanges as illustrated in Fig. 9. The bent portions ll of the support l6 cause the necessary grip in the double flange and a part l8 serves as fastening means. v

Fig. 11 shows how a structure according to the invention can be used to secure hollow plates, the structures employed being those according to Fig. 5. One of'the structures is secured by an anchor I 4 which is inserted in the groove between the legs of a double flange.

Structures according to Fig. 2 may be used for securing a fixed window or a wall. (See Fig. 12.) The re-entrant flanges 4 and lips 5 serve as a more or less flexible clamping device around I an anchor [5. When, as indicated in this figure,

wooden glass securing beads are used, the part l8 of the glass support l6 (see Fig. 13) is driven in the wood as shown in Fig. 12. Consequently to secure an airproof and at the same time soundless closing. 24 is an insulating covering held by panel plates 23 which are inserted in grooves 2 of the structure.

For large structures a stiffening element as shown in Fig. 1'7 for the stiffening of the corners could be affixed, for example by welding, in the grooves formed between the legs of 'the double flanges in order to prevent deflection. Fig. 18 shows such a construction.

A further advantage of the construction according to the invention is shown in Fig. 19'.

In Fig. 19 structures according to Fig. 3 have been applied forthe jointing of a wall to a metal girder 31. The grooves forming the flanges contain the plates building up the wall. One of the flanges has been fastened to the girder 31 by means of bolts 28. These are enclosed within the recess formed by the re-entrant flange 4 and the lip 5 and therefore are invisible. Furthermore the flange 4 serves as a strong support which prevents deflection. covering 24 is brought against the panel plate 23 which is located in and held by the groove 2 formed between the legsof the double flange I of the section. The coveringis also held fast by strips 21 fixed in the other groove 2. As is further schematically indicated/ in the figure, a

On the inside, an insulating masonry or the like wall can be provided adjacent to the insulation. An insulating section 28 has been laid against the girder 31 and is located at one end in a groove 2 of another section and at the other end is supported by the lip 5 of. the first section from which again another advantage of the section according to the invention appears.

In Fig. 19 there is also indicated how, by applying structures according to the invention, a window 43 can be aflixed to the wall. 7

An L-shaped fastening strip 29 is aflixed to the girder 31 by means of a screw 38 and'clamps v the section which holds fast the insulating element 28.

Also for the joining of parts to a wall (partition Wall) the construction according to the invention can be of advantage. An example of such a construction is given in Fig. 21, in which structures according to Figs. 3 and 5 are employed. Both sections and the parts of the wall can, by means of the construction of the sections according to the invention, be kept together and in the grooves 2 formed by the double flanges, the panel plates 23 are placed. Hence it is not necessary to use screws or the like.

In Fig. 22 the manner in which an arm 34 (see Fig. 23) can be fixed to the structure according to Fig. 5 is indicated. .The perpendicular flange 35 is partially removed.

In Fig. 26 there is shown the manner in which a structure according to the invention, when used with an indiarubber strip vIII, can be employed in conjunction with a known section.

Further constructional'features of structures according to the invention are illustrated in the Figures 20, 24, and 25.

In Fig. 20'the lip 5 is doubled to form abead, the inner edge of which faces the re-entrant flange 4. The doubled lower portion is designated by 48. Furthermore a strip of, flexible material 4| is affixed, by means of which the inner edge of the head is concealed.

In Fig. 25 the beaded portion Iv of the other leg has .also a doubled upper edge 48'.-

It is preferable to shape the heading in such a manner that the beading edge-forms a hole or ear, as indicated in Fig. 24. In this case the doubled portion 48 is bent into a bevel and forms a curve 42. The bevelling may serve to hold a flexible india rubber strip or the like in position. This is especially of advantage if, in order to get a good deflection, the rubber strip or the like is longer than the depth of the recess, as shown I in Fig. 20, so that the strip stays somewhat bent.

Having now particularly described and ascertained the nature of my said invention and in what manner the same can be performed, I declare that what I claim is:

v 1. A sheet metal closure structure, comprising a substantially straight main web, two double flanges extending in the same direction relative to said main web substantially at a right angle to said web, shaped bybending off two longitu-v dinal sides of said main web, each of said double flanges consisting of an inner and an outer leg parallel to and spaced from each other, 'thus forming a groove between each two legs, at least one of said outer legs being extended beyond the of a combination of two oppositely arranged units each comprising a substantially straight main web, two double flanges extending in the same direction relative to the plane of saidmain web substantially at a right angle to said web, shaped bybending oil the two longitudinal sides of said main web, each of said double flanges consisting of an inner leg and an outer leg parallel to and spaced from each other thus forming a groove between each two legs, at least one of said outer legs being extended and bent oi! substantially at an angle of 180 thus forming a second groove in an opposite direction to said first groove between said outer leg and its extension and an inturned lip at the end of said extended outer leg, said lip of each unit intimately engaging the opposite outer leg of the opposed unit.

4. A sheet metal closure structure consisting of a combination of two oppositely arranged units each comprising a substantially straight main,

web, two double flanges extending in the same direction relative to the plane of said main web substantially at a right angle to said web, shaped by bending oil the two longitudinal sides of said main web, each of said double flanges consisting of an inner leg and an outer leg parallel to and spaced from each other thus i'orming a groove between each two legs, at least one oi said outer'legsbeing extended and bent ofl substantially at an angle of 180 thus forming a second groove in an opposite direction to said flrst groove between said outer leg and its extension, an inturned lip at the end of said extended outer leg, said lip of each unit intimately en aging the opposite outer leg of the opposed unit and including a packing inserted between the outer leg, itsextension and said lip at the end or said extension of one unit and the outer leg of the opposed unit thus securing said packing in its place.

5. A sheet metal closure structure consisting of a'comblnation of two oppositely arranged units each comprising a substantially straight main web, two double flanges extending in the sarne. direction relative to the plane oi said main web substantially at a right angle to said web, shaped by bending oi! the two longitudinal sides of said main web, each or said double flanges consisting of an inner leg and an outer leg parallel toand spaced from each other thus forming a groove between each two legs, one of said outer legs being extended and bent oi! substantially at an angle of thus forming a second groove in an opposite direction to said first groove between said outer leg and its extension, an inturned lip at the end, or said extended outerleg and a flange extending outwardly from said other outer leg thus forming a condensation channel, said lip of each unit engaging the opposite outer leg of the opposed unit.

6. A sheet metal closurestructure for window frames including an arbor comprising a substantially straight main-web, two double flanges extending in the same direction relative to said main web substantially at a right angle to said.

web, shaped by bending ofl. two longitudinal sides of said main web, each of said double flanges consisting. of an" inner and an outer leg parallel to and spaced from each other thus forming a groove between each two-legs, each of said outer legs being extended and bent of! substantially at an angle of 180 thus forming a second groove in an opposite direction to said first groove .between said outer leg and its extension, said extensions terminating at a point beyond the bottom of said flrst grooves, an inturned lip at the end of each of said extended outer legs, said intumed lips engaging said arbor thus securing said sheet metal structure to said arbor. v

7. A sheet metal closure structure for window frames including an arbor comprising a substantially straight main web, two double flanges extending in the same direction relative to said main web substantially at a right angle to said web,

, shaped by bending ofl. two longitudinal sides of said main web, each of said double flanges consisting of an inner and an outer leg parallel to and spaced from each other thus forming a groove between each two legs, each of said outer tom of said flrst grooves, an inturned lip at the end of each of said extended outer legs, one of said extended outer legs extended beyond the plane of said main web before being bent oil, said inturned lips engaging said arbor thus se curing said sheet metaI structure to said arbor.

H. J. O. JOEANNS. 

